(See WikiCategories)
A wiki tag should help implement the mechanics which make wiki work. They are the little bits of SelfOrganizing principles which make wiki neat.
This is the ReverseIndex for the pages which define a WikiTag. (But not for WikiCategories.)
Some WikiTags are actually like the children's game of tag: Tag, you're it, and then you have to do something to get rid of the tag.
subcategory of CategoryWiki